公开(公告)号：US11098231B2

公开(公告)日：2021-08-24

申请号：US16774410

申请日：2020-01-28

Applicant: Saudi Arabian Oil Company

Inventor： Hussain AlBahrani ,  Abdullah Al-Yami ,  Vikrant Wagle

IPC: C09K8/24 ,  B01F17/00 ,  B01F17/42 ,  C04B7/52 ,  C04B14/06 ,  C04B24/02 ,  C04B28/08 ,  C09K8/03 ,  C09K8/04 ,  C09K8/40 ,  C09K8/46 ,  C09K8/74 ,  C10M105/18 ,  C10M173/02 ,  E21B21/00 ,  E21B43/25 ,  C09K8/22 ,  C09K8/467 ,  C10M173/00 ,  C04B28/02 ,  C04B28/04 ,  C09K8/20 ,  E21B33/14 ,  C09K8/035 ,  C09K8/08 ,  C09K8/42 ,  C09K8/48 ,  C04B24/08 ,  C09K8/487 ,  C04B38/02 ,  C10M105/62 ,  C10M107/34 ,  C10M111/04 ,  C09K8/32 ,  C09K8/36 ,  C10N20/02 ,  C10N20/04 ,  C10N20/00 ,  C10N30/06 ,  C10N40/22 ,  C10N50/00 ,  C10N40/00 ,  C09K8/514 ,  C09K8/28 ,  C04B103/40 ,  C04B103/46 ,  C04B111/00

Abstract: In one embodiment, a spacer fluid may comprise a base fluid and a surfactant package. The surfactant package may comprise one or more surfactants, where the surfactant package comprises a first surfactant having the chemical structure R—(OC2H4)x—OH. R may be a hydrocarbyl group having from 9 to 20 carbon atoms, and x may be an integer from 5 and 15. The first surfactant may have a hydrophilic-lipophilic balance (HLB) of from 12 to 13.5.

公开(公告)号：US20210189219A1

公开(公告)日：2021-06-24

申请号：US16718784

申请日：2019-12-18

Applicant: Saudi Arabian Oil Company

Inventor： Khawlah A. Alanqari ,  Abdullah Al-Yami ,  Vikrant Wagle ,  Ali Alsafran

IPC: C09K8/508 ,  C08L63/00 ,  C09K8/504 ,  E21B33/138 ,  E21B21/00

Abstract: Lost circulation material (LCM) compositions for sealing lost circulation zones in wellbores may include an epoxy resin, a curing agent, an amide accelerator, and calcium carbonate having an average particle size of from 1,000 microns to 10,000 micron. The epoxy resin includes at least one of 2,3-epoxypropyl-o-tolyl ether, C12-C14 alkyl glycidyl ether, 1,6-hexanediol diglycidyl ether, butyl glycidyl ether, or cyclohexanedimethanol diglycidyl ether. The epoxy resin can also include bisphenol-A-epichlorohydrin epoxy resin. Methods of treating a lost circulation zone of a wellbore include injecting the LCM compositions into the lost circulation zone and curing the LCM compositions, where the LCM compositions include an epoxy resin, a curing agent, an amide accelerator, and calcium carbonate having an average particle size of from 1,000 microns to 10,000 microns.

公开(公告)号：US10954427B2

公开(公告)日：2021-03-23

申请号：US15982048

申请日：2018-05-17

Applicant: Saudi Arabian Oil Company

Inventor： Rajendra Arunkumar Kalgaonkar ,  Vikrant Wagle

IPC: C09K8/506 ,  C09K8/504 ,  E21B33/138

Abstract: A method for plugging and sealing subsurface formations using alkaline nanosilica dispersion and a delayed activation chemistry is disclosed. In accordance with one embodiment of the present disclosure, the method includes introducing a mixture with a first pH into the subsurface formation. The mixture comprises an aqueous solution, an alkaline nanosilica dispersion and a water-soluble hydrolyzable compound. The method further includes allowing the water-soluble hydrolyzable compound to hydrolyze in the subsurface formation to form an acid at 70° C. or greater, thereby acidizing the mixture to a reduced second pH and causing the alkaline nanosilica dispersion to gel into a solid and seal the subsurface formation. A composition for sealing a subsurface formation is also disclosed. The composition includes an aqueous mixture including water, an alkaline nanosilica dispersion, and a water-soluble hydrolyzable compound.

公开(公告)号：US10858568B1

公开(公告)日：2020-12-08

申请号：US16508886

申请日：2019-07-11

Applicant: Saudi Arabian Oil Company

Inventor： Jothibasu Ramasamy ,  Vikrant Wagle ,  Md Amanullah

IPC: C09K8/36 ,  E21B21/00

Abstract: Invert emulsion drilling fluids having a combination of fatty acids derived from waste vegetable oil (WVO) and a fatty amine as a rheology modifier are provided. An invert emulsion drilling fluid may include a water in oil emulsion, an invert emulsifier, a fatty amine having six to thirty carbon atoms, and a fatty acid having six to eighteen carbon atoms. The fatty acid is provided by esterifying a waste vegetable oil to produce a methyl ester of the waste vegetable oil and cleaving an ester group from the methyl ester of the waste vegetable oil. The invert emulsion drilling fluid may be formulated free of organoclay. Methods of drilling a wellbore using an invert emulsion drilling fluid are also provided.

公开(公告)号：US20200377782A1

公开(公告)日：2020-12-03

申请号：US16998500

申请日：2020-08-20

Applicant: Saudi Arabian Oil Company

Inventor： Vikrant Wagle ,  Rajendra Kalgaonkar ,  Abdullah Al-Yami ,  Zainab Alsaihati

IPC: C09K8/508 ,  C09K8/504 ,  C04B28/24 ,  C09K8/516 ,  C04B28/26 ,  C09K8/506 ,  C01B32/20 ,  C01B33/141 ,  C01F11/18 ,  C08G63/08

Abstract: A lost circulation material (LCM) is provided having an alkaline nanosilica dispersion and an ester activator. The alkaline nanosilica dispersion and the ester activator may form a gelled solid after interaction over a contact period. Methods of lost circulation control using the LCM are also provided.

公开(公告)号：US10851281B2

公开(公告)日：2020-12-01

申请号：US16696166

申请日：2019-11-26

Applicant: Saudi Arabian Oil Company

Inventor： Abdullah Al-Yami ,  Abdulaziz A. Ba Hamdan ,  Saleh A. Haidary ,  Vikrant Wagle ,  Hussain AlBahrani ,  Ali Safran ,  Nasser AlHareth ,  Abdulla H. Awadh

IPC: C09K8/20 ,  C09K8/24 ,  E21B21/00 ,  C09K8/22 ,  C09K8/467 ,  C10M173/00 ,  C04B24/02 ,  C04B28/02 ,  C04B28/04 ,  C04B28/08 ,  C09K8/74 ,  E21B43/25 ,  C09K8/03 ,  B01F17/00 ,  C09K8/40 ,  E21B33/14 ,  C09K8/035 ,  C09K8/08 ,  C09K8/42 ,  C09K8/48 ,  C04B24/08 ,  C09K8/487 ,  C04B7/52 ,  C09K8/46 ,  C09K8/04 ,  C04B14/06 ,  C04B38/02 ,  C10M105/18 ,  C10M105/62 ,  C10M107/34 ,  C10M111/04 ,  C09K8/32 ,  C09K8/36 ,  C10M173/02 ,  C10N20/02 ,  C10N20/04 ,  C10N20/00 ,  C10N30/06 ,  C10N40/22 ,  C10N50/00 ,  C10N40/00 ,  C04B103/40 ,  C04B103/46 ,  C04B111/00

Abstract: Anti-bit balling drilling fluids and methods of making and using drilling fluids are provided. The anti-bit balling drilling fluid contains water, a clay-based component, and at least one of a surfactant having the formula: R—(OC2H4)x—OH, where R is a hydrocarbyl group having from 10 to 20 carbon atoms and x is an integer from 1 and 10, or a polyethylene glycol having the formula: H—(O—CH2—CH2)n—OH, where n is an integer from 1 to 50. Methods of making and using these drilling fluids are also provided.

公开(公告)号：US20200270503A1

公开(公告)日：2020-08-27

申请号：US16865721

申请日：2020-05-04

Applicant: Saudi Arabian Oil Company

Inventor： Vikrant Wagle ,  Rajendra Arunkumar Kalgaonkar ,  Abdullah Al-Yami

IPC: C09K8/16 ,  C09K8/24

Abstract: A method for controlling loss circulation in a subterranean formation. The method includes circulating in a wellbore a nanosilica drilling fluid having a pH in a range of from about 8 to about 11 and a gel pH of less than 8, where the nanosilica drilling fluid includes an aqueous-based drilling mud, an alkaline nanosilica dispersion, and at least one additive. The method also includes introducing into the nanosilica drilling fluid an amount of a chemical activator sufficient to produce a convertible drilling mud where the chemical activator is an acid and the pH of the convertible drilling mud is less than the gel pH. The method also includes allowing the convertible drilling mud to convert into the solid gel lost circulation material. A convertible drilling mud operable to convert into a solid gel lost circulation material is also provided.

公开(公告)号：US10703957B2

公开(公告)日：2020-07-07

申请号：US16039525

申请日：2018-07-19

Applicant: Saudi Arabian Oil Company

Inventor： Abdullah Al-Yami ,  Vikrant Wagle ,  Ali Safran

IPC: C09K8/24 ,  E21B21/00 ,  C09K8/22 ,  C09K8/467 ,  C10M173/00 ,  C04B24/02 ,  C04B28/02 ,  C04B28/04 ,  C04B28/08 ,  C09K8/74 ,  E21B43/25 ,  C09K8/03 ,  C09K8/20 ,  B01F17/00 ,  C09K8/40 ,  E21B33/14 ,  C09K8/035 ,  C09K8/08 ,  C09K8/42 ,  C09K8/48 ,  C04B24/08 ,  C09K8/487 ,  C04B7/52 ,  C09K8/46 ,  C09K8/04 ,  C04B14/06 ,  C04B38/02 ,  C10M105/18 ,  C10M105/62 ,  C10M107/34 ,  C10M111/04 ,  C09K8/32 ,  C09K8/36 ,  C10M173/02 ,  C04B103/40 ,  C04B103/46 ,  C04B111/00

Abstract: In one embodiment, a retarded acid system comprises an aqueous acid and a retarding surfactant. The aqueous acid may comprise from 5 wt. % to 25 wt. % of a strong acid, that is, an acid having a Ka greater than or equal to 0.01. The aqueous acid may further comprise from 75 wt. % to 95 wt. % water. The retarding surfactant may have the general chemical formula R—(OC2H4)X—OH where R is a hydrocarbon having from 11 to 15 carbon atoms and x is an integer from 6 to 10. The retarding surfactant may have a hydrophilic-lipophilic balance from 8 to 16.

公开(公告)号：US10689559B2

公开(公告)日：2020-06-23

申请号：US15924942

申请日：2018-03-19

Applicant: Saudi Arabian Oil Company

Inventor： Abdullah Al-Yami ,  Vikrant Wagle ,  Hussain Albahrani ,  Zainab Alsaihati ,  Antonio Santagati ,  Mohammad Al-Alqam ,  Ali Alsafran ,  Abdulaziz Alhelal ,  Nasser Alalhareth ,  Abdullah Al-Awadh

IPC: E21B33/13 ,  C09K8/44 ,  C07C39/06 ,  C08L33/20 ,  C04B38/02 ,  C09K8/46 ,  C04B28/04 ,  C09K8/467

Abstract: According to at least one embodiment of the present description, a cement slurry includes 50% to 90% BWOC of a cement precursor material based on a total weight of the cement slurry; and from 10% to 50% BWOC of a flexible additive based on the total weight of the cement slurry. The flexible additive includes hydrophilic polyolefin fibers or 2,6-di-tert-butyl-p-cresol.

公开(公告)号：US20200165504A1

公开(公告)日：2020-05-28

申请号：US16774410

申请日：2020-01-28

Applicant: Saudi Arabian Oil Company

Inventor： Hussain AlBahrani ,  Abdullah Al-Yami ,  Vikrant Wagle

IPC: C09K8/24 ,  E21B21/00 ,  C09K8/22 ,  C09K8/467 ,  C10M173/00 ,  C04B24/02 ,  C04B28/02 ,  C04B28/04 ,  C04B28/08 ,  C09K8/74 ,  E21B43/25 ,  C09K8/03 ,  C09K8/20 ,  B01F17/00 ,  C09K8/40 ,  E21B33/14 ,  C09K8/035 ,  C09K8/08 ,  C09K8/42 ,  C09K8/48 ,  C04B24/08 ,  C09K8/487 ,  C04B7/52 ,  C09K8/46 ,  C09K8/04 ,  C04B14/06 ,  C04B38/02 ,  C10M105/18 ,  C10M105/62 ,  C10M107/34 ,  C10M111/04 ,  C09K8/32 ,  C09K8/36 ,  C10M173/02

Abstract: In one embodiment, a spacer fluid may comprise a base fluid and a surfactant package. The surfactant package may comprise one or more surfactants, where the surfactant package comprises a first surfactant having the chemical structure R—(OC2H4)x—OH. R may be a hydrocarbyl group having from 9 to 20 carbon atom, and x may be an integer from 5 and 15. The first surfactant may have a hydrophilic-lipophilic balance (HLB) of from 12 to 13.5.